Starting and lighting apparatus.



E. M. FRASER.

STARTING AND LlGHTING APPARATUS.

APPLICATION FILED AUG. 14. 191?.

1,289,148. Patented Dec. 31, 1918.

2 SHEETSSHEET l.

H F1 9. 1. D

777 wwwboz ETHELBERT M. FRASER, F YONKEBS, NEW YORK.

sran'rinc AND merrrmc APPARATUS.

Specification of Letters Patent.

Patented Dec. 31, 191s.

Application filed August 14, 1917. Serial No. 186,088-

To all whom it may concern:

Be it known that I, ETHELBERT M. FRAsnR,

a citizen of the Dominion of Canada, residing at Yonkers, county ofWestchester, and State of New York, have invented new and usefulImprovements in Starting and Lighting Apparatus, of which the followingis a specification.

My invention relates to a starting and lighting apparatus particularlyadapted for use in motor vehicles, although it is likewise ap licable inother instances as will more fu y appear from the following description.One of the objects of my invention is to 15 provide in a single unitarystructure a motorgenerator set com rising a stationary field structure,a rotata 1e armature, and an independently rotatable second windinginterposed between said field structure and Said armature, that can beutilized for generating electric current and used as a motor forstarting automobiles.

Other objects of my invention will clearly appear from the drawings andfrom the detailed description to follow.

An apparatus embodying my invention is illustrated in the accompanyingdrawings, forming a part of this specification, in which Figure 1 isaside view partly in section.

Fig. 2 is a view illustrating the manner in which my improved startingand lighting apparatus may be connected up with a gasolene engine asused in motor vehicles.

Fi 3 is a wiring diagram of my starting 1 and'lighting apparatus inconnection with a starting switch, an automatic switch, a battery,lights, and horn motor. I

Fig. 4 illustrates a portion of the rotatable second winding shown insection.

In the preferred form of my device the improved starting and lightingapparatus comprises an outer stationary field structure B, an innerrotatable armature O and an intermediate independently rotatable secondwinding D, these three members constituting a motor-generator.

As shown in Fig. 1, the outer stationary field structure B comprises themagnet yoke and poles F, series coils and shuntroils H, constitutin oneset of field magnets and coils. Secure to the magnet yoke E are theend-bells I and I, the

central portions of which are constructed so as to form hubs or bearingsin which the shafts J and J, respectively, are suitably journaled.

The rotatable armature O comprises the core K, the armature winding Land the commutator M. The armature O with its commutator M is keyed orotherwise suitably secured to the shaft J.

The intermediate rotatable second winding D is made up of conductors ofhigh electric and magnetic conductivity, so constructed and arranged asto form a single winding, provided with a commutator which is carried bythe end-bell U which'is keyed or otherwise suitably secured to the shaftJ. This end-bell U also forms a support and bearing for one end of theshaft The other end of the armature winding D 1;

ell

secured to but insulated from the endwhich is rotatably mounted upon thehub of the end-bell I.

In Fig. 4 I have illustrated in section a part of this second winding Din which a is the soft iron portion made up of iron laminae, and b and 0form the copper conductors b and 0 being insulated from each other andfrom the iron portion a by the insulation (Z.

Suitably secured to the hub of the end-bell I are the brushes 0 for thecommutator and suitably secured to the end-bell I are the brushes R forthe commutator N.

As shown in Fig. 2 my starting and lighting device may be suitablysecured to the casing of the gasolene engine S by means of the strap T,although if preferred it may be secured to the engine bed or to anyother adaptable part of the motor vehicle. One end of the driving shaftS of the engine S is connected the shaft J while the shaft J.

gear. Such a throw-out gear may well known illustrated diagrammaticallyin Fig. 2,'from which it will be apparent that as the shaft J is rotatedthe pinion V will move forward to engage and W, thereby rotating thedriving shaft engine S. In my be the 0f the rotate the toothed fly wheelimproved starting and lighting apparatus the speed ratio between theengine shaft andshaft J is preferably 2- by suitable gears and chain toi may be pro-' vided with any suitable form of throw-out Bendix gear.which I have u mg or closing the heavy lines connected through themotor" winding D to the starting switch X and to thestorage battery Z.The generator shunt field coils H which are connected in shunt acrossthe generator armature winding L are shown in light lines in the circuitof which is inserted the switch Q for automatically closing the circuitwhen the current has reached a certain voltage for chargin the battery Zand which will open automatically when the voltage falls below the saidpredetermined amount. The lights 1, 2 and 3 and horn motor 4, with theirrespective switches, are connected across the battery circuit.

With my improved starting and lighting apparatus connected in the mannershown in Fig. 2 the closing of the switch X will place the batter Z incircuit with the motor winding D and the series coils G. This will causethe winding D and the shaft J twlll rotate the shaft J close therebyenabling the to rotate; the pinion V will move out on its threaded shaftso as to engage and rotate the fly wheel W thereby causing the shaft ofthe engine S to rotate and start the engine. As soon as the enginespeeds up sufliciently so that the fly wheel W causes the pinion V torotate faster than the shaft J, the pinion V will automaticallydisengage thefly wheelW and the opening of the switch X will then cutout the motor winding D coils G. The continued rotation of the shaft ofthe engine and the armature 0. he armature (l with its cooperating fieldstructure B 'will then actas a generator to generate current. When thiscurrent has reached a certain voltage the switch Q will battery Z to becharged. If the voltage generated by my device should fall below thepredetermined amount then the switch Q will open thereby protecting thebattery Z from any discharge. it an apparatus and system arranged inaccordance with my invention the battery Z may be utilized for operatingincandescent lamps in the various lights 1, 2 and 3 of the motorvehicle, or for operating the What I claim is:

1. The combination with an explosive engine having a driving shaft, of afield structure having field magnets and coils, two armature windingswhich can move relative to each other, an armature core which is theonly core for said armature windings and magnetically common to both,means intermediate said shaft and one of said armature windingsconnecting the two members together, connecting said other armaturevwinding to and from said shaft.

2. The combination with an explosive engine having a driving shaft, of astationary field structure having one set of field magnets and coils, arotatable armature provided With windings, core and commutator, anindependently rotatable second winding interposed between said fieldmagnets and electric horn 4, or for supplying the energy 4 preciseconstruction and ar- 'mutator suitably tatable shafts,

armature and concentric therewith, said core being the only coremagnetically common to said armature windings and said second winding,means mechanically con: necting said shaft with said armature, and meansfor mechanically connecting and disconnecting said second winding to andfrom said shaft.

3. The combination with an explosive engine having a driving shaft, oftwo independently rotatable shafts, a stationary field structure havingaset of field magnets and coils,

a second winding interposed between said field magnets and saidarmamechanically connecting said engine shaft with said armature shaft,and means automatically putting said second winding shaft in an out ofengagement with said engine shaft.

4. The combination with an explosive engine having a driving, shaft, ofa stationary field structure having one set of field magnets and coils,a rotatable armature with its core and commutator, an independentlyrotatable second winding interposed between said field magnets andarmature and concentric therewith, said core being the sole core forsaid interposed second w1nding, a storage battery, a starting switch inseries with said battery, said field coils and said second winding,means mechanically connecting said engine shaft with said armature, andmeans for mechanically connecting and disconnecting said second. windingto'and from said engineshaft.

5 The combination with an explosive enfield structure having one set offield magnets, each magnet being providedwith two coils, a rotatablearmature with its core,

' said armature, and

ed to open or close said generator circuit when the voltage thereinfalls below or exceeds a predetermined-voltage, means mechanicallyconnecting said engine shaft with means for connecting and disconnectingsaid second winding to and from said engine shaft on the closing oropening of said starting switch.

6. The combination with an explosive engine having a driving shaft, ofan electric motor-generatorcomprising an outer sta tionary fieldstructure, an inner rotatable armature, and a rotatable second windinginterposed between said field structure and said armature, meansrotation of said second winding to said enfor transmitting the gineshaft at a suitable speed ratio, and means for transmitting the rotationof said engine shaft to said armature at a' suitable speed ratio.

7. A starting and lighting system com prising incombination an electricmotorgenerator having a motor shaft, a generator shaft, a fieldstructure provided with field magnets and coils, two armature windingseach provided with its own commutator and brushes, and one armature corewhich is magnetically common to both armature windings, one of saidarmature windcoplel of this patent may be obtainei.

the current set u ings being interposed between said "field magnets andsaid other armature winding and secured to said motor shaft, the otherof '45 said armature windings with its commutator and said armature corebeing secured to said generator shaft, a battery in the motor andgenerator circuits of said motorgenerator, a switch adapted to open orclose said motor circuit, and a switch adapted to automatically open orclose said generator circuit when the voltage therein falls below orexceeds a predetermined voltage.

8. The method of starting an engine and of generating electric currentby means of an apparatus consistng of a stationary set of field magnetsand coils, a rotatable armature provided with'windings, core, commutatorand brushes, tatable current-carrying winding interposed between saidfield magnets and said armature and having a commutator and brushes butno core, which method consists in passing an electric current throughthe field'. coils to produce a magnetic flux, simul taneously passingcurrent carrying winding to rotate,

a current through said transmitting the rotary motion of saidcurrent-carrying winding to 70 th'e driving shaft of an engineto startthe same, and transmitting the rotary motion of said engine shaft to thearmature whereby with said magnetic current. v 1

This specification signed and witnessed this 11th day of Au st, A. D.,1917.

ETHEL Signed in the presence of- W. C. MARGESON, WILLIAM H. BRon'r.

flux to produce electric for five cents each, addressing theCommissioner of Iatentl,

Washington, D. 0.

winding to cause said and an independently roin said armature reacts vERT M. FRASER.

